Difference between revisions of "Postulates"

Revision as of 10:45, 19 April 2016

All shared resources must be restored by the task with the least PID to avoid deadlocks.
No operations with file paths in restorer blob -- task has restored it's fs (cwd and root) and may see different tree.
In "dump" code any fork()+exec() should be done using the cr_system() helper not to interfere with victim task tracing.
To keep backward compatibility on protobuf image files, follow those rules (short notes from protobuf messages updating guide):
- Don't change the numeric tags for any existing fields.
- Any new fields that you add should be optional or repeated.
- Non-required fields can be removed, as long as the tag number is not used again in your updated message type.

@@ Line 2: / Line 2: @@
 * No operations with file paths in restorer blob -- task has restored it's fs (cwd and root) and may see different tree.
 * In "dump" code any fork()+exec() should be done using the cr_system() helper not to interfere with victim task tracing.
+* To keep backward compatibility on protobuf image files, follow those rules (short notes from [https://developers.google.com/protocol-buffers/docs/proto#updating protobuf messages updating guide]):
+** Don't change the numeric tags for any existing fields.
+** Any new fields that you add should be optional or repeated.
+** Non-required fields can be removed, as long as the tag number is not used again in your updated message type.
 [[Category:Development]]